Probing for Exoplanets Hiding in Dusty Debris Disks: Disk Imaging, Characterization, and Exploration with HST/STIS Multi-roll Coronagraphy
Authors: Glenn Schneider, Carol A. Grady, Dean C. Hines, Christopher C. Stark, John H. Debes, Joe Carson, Marc J. Kuchner, Marshall D. Perrin, Alycia J. Weinberger, John P. Wisniewski, Murray D. Silverstone, Hannah Jang-Condell, Thomas Henning, Bruce E. Woodgate, Eugene Serabyn, Amaya Moro-Martin, Motohide Tamura, Phillip M. Hinz, and Timothy J. Rodigas
Schneider et al.
2014 The Astronomical Journal14859.
Provider: AAS Journals
Caption: Figure 11.
(A) HD 15115 scattered-light ACS discovery image reproduced from Kalas et al. (2007b). (B) STIS 6R/PSFTSC image log10 displayed with 20,000 times imaging the dynamic range from [−3.0] to [+1.0] counts s−1 pixel−1 {dex} (0.177–3532 μJy arcsec−2). The radial extents of the disk along the mid-plane to sensitivity-limited stellocentric distances at 3σ resel−1 over the background are indicated. Note the preponderance of starlight-scattering material preferentially "above" the disk mid-plane (only) to the NW of the star. The region interior to the r = 25 red circle was unimaged with ACS. (C) Same data as panel (B) shown in grayscale with a log10 stretch from [−3.5] to [+1.0] counts s−1 pixel−1 {dex} (0.056–3532 μJy arcsec−2). The green circle indicates the r = 04 IWA along the disk mid-plane. The mid-plane diverging, bifurcated, linear light-scattering structures on the east side of the disk are indicated. (D) Disk mid-plane from ~10 to 25 (inset FOV 5'' × 5'' linear display stretch from −1 to + 2.5 mJy arcsec−2) resolved by Rodigas et al. (2012) at the Ks band with LBT/PICES overlaid on the STIS image. All images are north up, east left.